69% (2010)

89% (2001)

72% (2012)

64% (2009)

58% (1985)

81% (1993)

67% (1981)

68% (1952)

63% (1988)

76% (1991)

84% (2014)

58% (2014)

85% (2020)

67% (2005)

63% (1957)

62% (1980)

73% (1995)

74% (2004)

85% (2011)

54% (2006)